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dc.contributor.authorLombeck, Fen
dc.contributor.authorMüllers, Sen
dc.contributor.authorKomber, Hen
dc.contributor.authorMenke, Stephenen
dc.contributor.authorPearson, Andrewen
dc.contributor.authorConaghan, Patricken
dc.contributor.authorMcNeill, CRen
dc.contributor.authorFriend, Richarden
dc.contributor.authorSommer, Men
dc.date.accessioned2017-09-07T16:28:42Z
dc.date.available2017-09-07T16:28:42Z
dc.date.issued2017-10-01en
dc.identifier.issn1566-1199
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/267079
dc.description.abstractThe synthesis, characterization and solar cell performance of PCDTBT and its highly soluble analogue hexyl-PCDTBT with cross-conjugated benzoyl moieties at the carbazole comonomer are presented. Through the use of both model reactions and time-controlled microwave-assisted Suzuki polycondensation, the base-induced cleavage of the benzoyl group from the polymer backbone has been successfully suppressed. Compared to the commonly used symmetrically branched alkyl motif, the benzoyl substituent lowers the energy levels of PCDTBT as well as the band gap, and consequently increases energy of the charge transfer state in blends with PC71BM. As a result, photovoltaic diodes with high-open circuit voltage of above 1 V are realized.
dc.languageengen
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectPCDTBTen
dc.subjectbenzoyl side chainsen
dc.subjectcross conjugationen
dc.subjectconjugated polymersen
dc.subjecthigh open-circuit voltageen
dc.subjectsolar cellsen
dc.titleBenzoyl side-chains push the open-circuit voltage of PCDTBT/PCBM solar cells beyond 1 Ven
dc.typeArticle
prism.endingPage151
prism.publicationDate2017en
prism.publicationNameOrganic Electronics: physics, materials, applicationsen
prism.startingPage142
prism.volume49en
dc.identifier.doi10.17863/CAM.11237
dcterms.dateAccepted2017-06-20en
rioxxterms.versionofrecord10.1016/j.orgel.2017.06.055en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
rioxxterms.licenseref.startdate2017-10-01en
dc.contributor.orcidMenke, Stephen [0000-0003-4468-0223]
dc.contributor.orcidPearson, Andrew [0000-0003-3634-4748]
dc.contributor.orcidConaghan, Patrick [0000-0001-9199-5805]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.identifier.eissn1878-5530
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/G060738/1)
cam.issuedOnline2017-06-21en
rioxxterms.freetoread.startdate2018-06-20


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International